Home / 66,381.38-91,607.36-36,166.69

Finding the Fourth Proportional to 66,381.38, 91,607.36 and 36,166.69

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Solution

The fourth proportional to 66,381.38, 91,607.36 and 36,166.69 is: 49,910.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,381.38 : 91,607.36 = 36,166.69 : x
  2. Step 2: Convert to fraction form
    66,381.38/91,607.36 = 36,166.69/x
  3. Step 3: Cross multiply
    66,381.38x = 91,607.36 × 36,166.69
  4. Step 4: Simplify right side
    66,381.38x = 3,313,135,182.16
  5. Step 5: Solve for x
    x = 3,313,135,182.16/66,381.38
  6. Step 6: Final answer
    x = 49,910.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.